package com.hqyj.javaSpringBoot.modules.test.dao;

import com.hqyj.javaSpringBoot.modules.test.entity.Student;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

/**
 * @author ：Cwd
 * @Description：StudentRepository
 * @date ：2021/8/20 14:40
 */
@Repository
/*public interface StudentRepository extends JpaRepository<Student,Integer> {*/
public interface StudentRepository extends JpaRepository<Student,Integer>, JpaSpecificationExecutor<Student> {

    //根据属性查询 父接口JpaRepository中未定义
    Student findFirstByNameAndEmail(String name,String email);

    //HQL查询
    @Query(value = "from Student where id = :id")
    Student getStudentById(@Param("id") int id);

    //原生SQL查询
    @Query(nativeQuery=true, value = "select * from test_student where id = :id")
    Student getStudentByIfForSql(@Param("id") int id);

    @Query(nativeQuery=true, value = "insert into test_student (name,email,age) " +
            "values(:#{#student.name}, :#{#student.email}, :#{#student.age})")
    @Modifying
    void insertStudent(@Param("student") Student student);
}
